A student states, "It seems like helper T cells do a lot more than just 'help' the cellular immunity process". Which response listed below best conveys an aspect of the role of CD4+ helper T cells in immunity?a. Helper T cells are key to the hematopoiesis that produces all the components of the immune system.
b. Without helper T cells, the wrong antibiotics would end up being produced.
c. Without helper T cells, no antigens would be presented
d. Helper T cells play a major role in stimulating and regulating the whole process.

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.

Cells control gene expression at which steps